Update sbt-scalajs, scalajs-compiler to 1.3.0 (#224)

Author: scala-steward

project/plugins.sbt

@@ -2,7 +2,7 @@ addSbtPlugin("com.geirsson" % "sbt-ci-release" % "1.5.3")
 addSbtPlugin(("io.github.alexarchambault.sbt" % "sbt-compatibility" % "0.0.8").exclude("com.typesafe", "sbt-mima-plugin"))
 addSbtPlugin("io.github.alexarchambault.sbt" % "sbt-eviction-rules" % "0.2.0")
 addSbtPlugin("com.github.alexarchambault.tmp" % "sbt-mima-plugin" % "0.7.1-SNAPSHOT")
-addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.2.0")
+addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.3.0")
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.0.0")
 addSbtPlugin("org.scala-js" % "sbt-jsdependencies" % "1.0.2")
 addSbtPlugin("io.get-coursier" % "sbt-shading" % "2.0.0")